1 /* 2 * Copyright 2015 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs <bskeggs@redhat.com> 23 */ 24 #include "priv.h" 25 26 static void 27 nvkm_bus_intr(struct nvkm_subdev *subdev) 28 { 29 struct nvkm_bus *bus = nvkm_bus(subdev); 30 bus->func->intr(bus); 31 } 32 33 static int 34 nvkm_bus_init(struct nvkm_subdev *subdev) 35 { 36 struct nvkm_bus *bus = nvkm_bus(subdev); 37 bus->func->init(bus); 38 return 0; 39 } 40 41 static void * 42 nvkm_bus_dtor(struct nvkm_subdev *subdev) 43 { 44 return nvkm_bus(subdev); 45 } 46 47 static const struct nvkm_subdev_func 48 nvkm_bus = { 49 .dtor = nvkm_bus_dtor, 50 .init = nvkm_bus_init, 51 .intr = nvkm_bus_intr, 52 }; 53 54 int 55 nvkm_bus_new_(const struct nvkm_bus_func *func, struct nvkm_device *device, 56 int index, struct nvkm_bus **pbus) 57 { 58 struct nvkm_bus *bus; 59 if (!(bus = *pbus = kzalloc(sizeof(*bus), GFP_KERNEL))) 60 return -ENOMEM; 61 nvkm_subdev_ctor(&nvkm_bus, device, index, 0, &bus->subdev); 62 bus->func = func; 63 return 0; 64 } 65